/// @notice Transfers ownership to given account
/// @param _newOwner Address of new owner
function transferOwnership(address _newOwner) external {
    if (owner != msg.sender) revert NotOwner(owner, msg.sender);
    owner = _newOwner;
    emit TransferOwnership(msg.sender, _newOwner);
}
/// @notice Updates the controller address for the FERC1155 token contract
/// @param _newController Address of new controlling entity
function transferController(address _newController)
    external
    onlyController
{
    if (_newController == address(0)) revert ZeroAddress();
    _controller = _newController;
    emit ControllerTransferred(_newController);
}
